FMA Direct WARLOCK Owner's Manual

number until you are satisfied with your FAIL-SAFE settings. Each time you complete
FAIL-SAFE setup, the new settings you create will replace any existing settings.
ACCESSORIES
Aileron extension cables, Y-harness, switch harness, and numerous other accessories as well as a
SPECIFICATIONS:
SIZE: 1.69"L X 1.14"W X 0.77"H
WEIGHT: 0.89 OZ.
DESIGN: SINGLE CONVERSION, SUPER HETERODYNE
CHANNELS: 1-4
MAIN CONTROL: 10 BIT MICROPROCESSOR (1024 RESOLUTION)
SPECIAL FUNCTIONS: S.M.A.R.T. DECODING
PROGRAMMABLE FAIL SAFE CHANNELS 1-4
MODULATION: FM / PPM (PULSE POSITION MODULATION)
FREQUENCY: R/C SURFACE CHANNELS 61 THROUGH 90 (75 MHz)
ULTIMATE BANDPASS: ± 9 KHz @ >60 dB DOWN
USABLE SENSITIVITY: > -94 dBm
OPERATING VOLTAGE: +3.5V TO +10V DC LIMITED ONLY BY SERVO REQUIREMENTS
LEGAL USE: MEETS AMA GUIDELINES
FMA LIMITED WARRANTY ON WARLOCK RECEIVER PRODUCTS
FMA, Inc. warrants this receiver to be free of manufacturing defects for the term of 90 days from
the date of purchase. Should any defects covered by this warranty occur, the receiver shall be
repaired or replaced with a unit of equal performance by FMA, Inc., or an authorized FMA service
station.
LIMITS AND EXCLUSIONS
This warranty may be enforced only by the original purchaser, who uses this receiver in its original
condition as purchased, in strict accordance with the WARLOCK owner's manual. Receivers
returned for warranty service to an FMA service center will be accepted for service when shipped
post-paid, with a copy of the original sales slip or warranty registration form, to the service station
advised by FMA, Inc.
THIS WARRANTY DOES NOT APPLY TO
1. Consequential or incidental losses resulting from the use of this receiver.
2. Damage resulting from accident, crashes, misuse, abuse, neglect, electrical surges,
reversed polarity on connectors, lightning or other acts of God.
3. Damage from failure to follow instructions supplied with the product.
4. Damage occurring during shipment of the product either to the customer or from the
customer for service (claims must be presented to the carrier).
5. Damage resulting from repair, adjustment, or any alteration to product by any one
other than an authorized FMA technician.
6. Installation or removal charges, or damage caused by improper installation or
removal.
CALL (301) 831-8980 FOR INFORMATION ABOUT SERVICE AND WARRANTY REPAIRS.
OWNER'S MANUAL
NOTE: PLEASE READ MANUAL COMPLETELY BEFORE OPERATION
INTRODUCTION:
Thank you for purchasing the FMA Direct / RCLine WARLOCK FM, UNIVERSAL, FAIL-
SAFE receiver. WARLOCK receivers are designed to provide years of trouble-free operation
in the most demanding surface environments. Fully crystal-interchangable using all major
brand, single conversion factory crystals (including Futaba, JR, and Airtronics), the
WARLOCK is compatible with all standard FM transmitters on 75 MHz. Microprocessor
controlled at 10 bit, 1024 resolution, the WARLOCK is the first of its kind to offer S.M.A.R.T.
decoding and true FAIL-SAFE operation.
What is S.M.A.R.T. decoding?
Microprocessor-controlled, Advanced, Radio Transmission decoding. It works like PCM,
only better! It costs much less to produce and it works with any standard FM / PPM
transmitter. Why is it better? It's better for two reasons:
1) Standard FM or PPM information is much simpler to decode than PCM information
because it contains less data and it always has a similar, repeating pattern. PPM is based on
pulse-width information and the number of pulses would be as few as four for a 3 channel
transmitter. PCM is based on digital data streams of "1's" and "0's", or "bits". At 1024
resolution, PCM must transmit 10 bits for every transmitter channel! So with PPM, it's easier
and faster for a microprocessor to sense when there are errors within the transmission
(interference) and to prevent the servos from "seeing" these errors. Can you imagine how
difficult it would be for a microprocessor to determine if there was an incorrect bit in a PCM
transmission?
2) Because there is much less data in a PPM transmission, the band-width of the receiver
can be greatly reduced and the receiver can be made much more narrow-band. It is always
better to keep the receiver design as narrow-band as possible to help alleviate the need for
FAIL-SAFE. Most PCM designs do the opposite, they rely on FAIL-SAFE to mask the fact
that the receiver is more open to RF interference.
In actual performance terms, S.M.A.R.T. decoding provides improved radio reception
over standard and PCM decoding methods, improves range, and resorts to FAIL-SAFE much
less often than PCM. But just in case interference becomes overwhelming, the FAIL-SAFE
capabilities in the WARLOCK are fully programmable on any one or all of the four channels.
FMA, Inc.
9607 Dr. Perry Road - Unit 109
Ijamsville, MD 21754
WARLOCK
4 CHANNEL FM UNIVERSAL
RADIO CONTROL RECEIVER
WITH FAILSAFE
It's a new technology that stands for: Selective,